4H-cyclopenta[b]-thiophene | 250-61-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 杂芳族化合物
• 英文名称: 4H-cyclopenta[b]-thiophene
• 英文别名: 4H-cyclopenta[b]thiophene
• CAS: 250-61-3
• 化学式: C₇H₆S
• 分子量: 122.191
• InChiKey: BLDJJTPGMSJNJF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  8
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  28.2
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  噻吩-2,3-二羧酸 在 乙酸酐 作用下， 500.0 ℃ 、666.61 Pa 条件下， 反应 2.0h， 生成 4H-cyclopenta[b]-thiophene
  参考文献：
  名称：

  噻吩二甲酸酐的热解作为制备五元杂芳烃的途径

  摘要：

  在噻吩的存在下，噻吩-2,3(5) 和 -3,4-二羧酸 (6) 和噻吩-2,3-二羧酸 (7) 的酸酐的流动真空热解 (FVT)，1, 3-环己二烯或苯得到噻吩 (Ma)，推测是通过二烯捕集器的中间体 Diels-Alder 加合物和芳炔 2,3-二脱氢噻吩 (8) 的芳构化作用产生的。类似的原理解释了由 7 和噻吩形成的二苯并噻吩、来自 5 的四种单甲基噻吩 22-25 和环戊二烯、5,6-二甲基噻吩（来自 5 和 2,3-二甲基丁二烯的 150，以及来自 1 9 的羟基噻吩的混合物） 5 和呋喃。后一反应也产生异构环戊烯噻吩 (19) 的混合物，这可能是由 15d 的脱羰产生的。5 与丙炔作为陷阱的 FVT 反应得到了丙炔基 (28) 和丙炔基噻吩 29 的混合物，这可能是由陷阱和芳炔 8 的烯反应产生的。酸酐 5 和 6 在熔融蒽中的分解仅导致弗里德尔- 工艺产品，例如来自 5 和

  DOI：

  10.1021/ja00400a046

文献信息

• POLYMERIZABLE COMPOUND AND OPTICAL ISOMER
  申请人：DIC Corporation

  公开号：US20180022716A1

  公开（公告）日：2018-01-25

  The present invention provides a polymerizable compound having high storage stability without causing crystal precipitation when added to a polymerizable composition. The present invention also provides a polymerizable composition containing the compound. When the filmy polymer produced through polymerization of the polymerizable composition is irradiated with UV light, it hardly discolors or peels from substrate. Further, the present invention provides a polymer produced through polymerization of the polymerizable composition and an optically anisotropic body using the polymer.

  本发明提供了一种聚合物化合物，具有高储存稳定性，添加到聚合物化合物时不会导致结晶沉淀。本发明还提供了含有该化合物的聚合物化合物。当通过聚合物化合物的聚合产生薄膜状聚合物时，若用紫外光照射，它几乎不会变色或脱落。此外，本发明提供了通过聚合物化合物的聚合产生的聚合物，以及使用该聚合物的光学各向异性体。
• [EN] POLYMERIZABLE COMPOUND AND OPTICALLY ANISOTROPIC BODY<br/>[FR] COMPOSÉ POLYMÉRISABLE ET CORPS OPTIQUEMENT ANISOTROPE
  申请人：DAINIPPON INK & CHEMICALS

  公开号：WO2017079867A1

  公开（公告）日：2017-05-18

  There is provided a polymerizable composition, by which discoloration or alignment defects are less likely to occur when a filmy polymer, which is obtained by adding a polymerizable compound to the polymerizable composition and polymerizing this composition, is irradiated with ultraviolet light. There are also provided a polymer obtained by polymerizing the polymerizable composition, and an optically anisotropic body using the polymer. The present invention provides a polymerizable low-wavelength dispersive or polymerizable reverse-wavelength dispersive compound having a partial structure represented by Formula (Z-0). Further, the present invention provides a composition containing the compound; a polymer obtained by polymerizing the composition; and an optically anisotropic body obtained by using the polymer.

  提供一种可聚合的组合物，通过该组合物得到的薄膜聚合物在紫外光照射时，不太容易发生变色或排列缺陷。还提供了通过聚合该聚合物组合物得到的聚合物，以及使用该聚合物的光学各向异性体。本发明提供了一种具有由式（Z-0）表示的部分结构的可聚合低波长色散或可聚合反波长色散化合物。此外，本发明提供了一种含有该化合物的组合物；通过聚合该组合物得到的聚合物；以及通过使用该聚合物得到的光学各向异性体。
• POLYMERIZABLE COMPOUND AND OPTICALLY ANISOTROPIC BODY
  申请人：DIC Corporation

  公开号：US20180002276A1

  公开（公告）日：2018-01-04

  In light of requests to reduce or reverse the wavelength dispersion of the birefringence of a phase-retardation film in order to increase the viewing angle of a liquid crystal display, the present invention provides a polymerizable compound that reduces, for example, the likelihood of crystals precipitating in a polymerizable composition including the polymerizable compound and enables the polymerizable composition to have high preservation stability and a polymerizable composition including the polymerizable compound which reduces the likelihood of inconsistencies being formed in a film-like polymer produced by polymerizing the polymerizable composition. Another object of the present invention is to provide a polymer produced by polymerizing the polymerizable composition and an optically anisotropic body including the polymer.

  鉴于要求减少或逆转相位延迟膜的双折射波长色散，以增加液晶显示器的视角，本发明提供了一种可聚合化合物，例如减少聚合物化合物中晶体沉淀的可能性，并使聚合物化合物具有高保存稳定性以及包括减少聚合物化合物聚合产生的膜状聚合物中不一致性的可能性的聚合物化合物。本发明的另一个目的是提供通过聚合聚合物化合物产生的聚合物以及包括该聚合物的光学各向异性体。
• POLYMERIZABLE COMPOUND, COMPOSITION, POLYMER, OPTICALLY ANISOTROPIC BODY, LIQUID CRYSTAL DISPLAY ELEMENT, AND ORGANIC EL DEVICE
  申请人：DIC Corporation

  公开号：US20170260150A1

  公开（公告）日：2017-09-14

  It is an object of the present invention to provide a polymerizable compound having a good liquid crystal property, a good alignment property, sufficient solubility in solvents, high preservation stability in a solution state, and high optical stability; a composition including the polymerizable compound; a polymer produced by polymerizing the polymerizable compound, such as a resin produced using the polymerizable compound; an optically anisotropic body including the polymer; and a liquid crystal display element and an organic EL device that include the optically anisotropic body. As a result of conducting intensive studies in order to achieve the above object, the compound represented by General Formula (I) is developed.

  本发明的目的是提供一种具有良好液晶性能、良好对准性能、在溶剂中具有足够溶解性、在溶液状态下具有高保持稳定性和高光学稳定性的可聚合化合物；包括该可聚合化合物的组合物；通过聚合该可聚合化合物而产生的聚合物，如使用该可聚合化合物生产的树脂；包括聚合物的光学各向异性体；以及包括光学各向异性体的液晶显示元件和有机EL器件。为了实现上述目标，进行了深入研究，开发了由一般式（I）表示的化合物。
• THIN FILM AND COMPOUND USED IN THE SAME
  申请人：Ohshita Joji

  公开号：US20130001472A1

  公开（公告）日：2013-01-03

  To provide a novel material exhibiting excellent light-emitting characteristics using a heavy metal element having relatively abundant reserve. A thin film containing a compound of Formula (1): wherein Ar 1 and Ar 2 are each independently a C 3-30 aromatic ring; R 1 and R 2 are a substituent; a and b are each independently an integer of 0 to 12, wherein when a is 2 or more, each R 1 is optionally different from each other and two R 1 are optionally bonded with each other to form a ring structure, and when b is 2 or more, each R 2 is optionally different from each other and two R 2 are optionally bonded with each other to form a ring structure; A 1 is any of direct bond, —O—, —S—, —S(═O)—, —S(═O) 2 —, —PR 3 —, —NR 4 —, and —C(—R 5 ) 2 —; R 3 is a hydrogen atom or a substituent; R 4 is a hydrogen atom or a substituent; R 5 is a hydrogen atom or a substituent and two R 5 are optionally different from each other; E 1 is a monovalent group having 50 or less carbon atoms; L 1 is a ligand having 50 or less carbon atoms; c is an integer of 0 to 3, wherein when c is 2 or more, each L 1 is optionally different from each other; and each combination of a combination of E 1 and Ar 1 and a combination of E 1 and Ar 2 optionally forms a bond; and when c is 1 to 3, each combination of a combination of L 1 and E 1 , a combination of L 1 and Ar 1 , a combination of L 1 and Ar 2 , and a combination of L 1 and L 1 optionally forms a bond.

  提供一种使用相对丰富的重金属元素制备出具有优异发光特性的新型材料。所述薄膜包含式（1）的化合物：其中Ar1和Ar2各自独立为C3-30芳香环；R1和R2为取代基；a和b各自独立为0至12的整数，当a为2或更多时，每个R1可选择不同，两个R1可选择相互连接形成环状结构；当b为2或更多时，每个R2可选择不同，两个R2可选择相互连接形成环状结构；A1为直接键，-O-，-S-，-S(═O)-，-S(═O)2-，-PR3-，-NR4-和-C(—R5)2-中的任意一种；R3为氢原子或取代基；R4为氢原子或取代基；R5为氢原子或取代基，两个R5可选择不同；E1为具有50个或更少碳原子的一价基团；L1为具有50个或更少碳原子的配体；c为0至3的整数，当c为2或更多时，每个L1可选择不同；当c为1至3时，每个L1和E1的组合，每个L1和Ar1的组合，每个L1和Ar2的组合，以及每个L1和L1的组合可选择相互连接。